Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: [RFC] powerpc: Enable UBSAN support | From | Andrew Donnellan <> | Date | Tue, 15 Dec 2015 13:40:26 +1100 |
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On 10/12/15 11:42, Daniel Axtens wrote: > This hooks up UBSAN support for PowerPC. > > So far it's found some interesting cases where we don't properly sanitise > input to shifts, including one in our futex handling. Nothing critical, > but interesting and worth fixing. > > CC: Andrey Ryabinin <aryabinin@virtuozzo.com> > --- > > This to be applied on top of next with Andrey's patches: > 1) https://patchwork.kernel.org/patch/7761341/ > 2) https://patchwork.kernel.org/patch/7761351/ > 3) https://patchwork.kernel.org/patch/7761361/ > 4) https://patchwork.kernel.org/patch/7785791/ > > This is RFC for a couple of reasons: > > - I'd like the original patches to > s/ARCH_HAS_UBSAN_SANTIZE_ALL/ARCH_HAS_UBSAN_SAN*I*TIZE_ALL/ > (I'm about to send an email about that) > > - I've only tested on LE pseries so far - I want to test on powernv, > and on BE. > > Signed-off-by: Daniel Axtens <dja@axtens.net>
I tested this patch as found in linux-next, along with the SANITIZE_ALL typo fix, on a big-endian BML system, with gcc 5.2.1. It successfully picked up one of the shift input issues that Daniel found, so therefore...
Tested-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
-- Andrew Donnellan Software Engineer, OzLabs andrew.donnellan@au1.ibm.com Australia Development Lab, Canberra +61 2 6201 8874 (work) IBM Australia Limited
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